clang/test/SemaCXX/warn-new-overaligned-3.cpp

34 строки
888 B
C++

// RUN: %clang_cc1 -triple=x86_64-pc-linux-gnu -Wover-aligned %s -isystem %S/Inputs -verify
// This test ensures that we still get the warning even if we #include <new>
// where the header here simulates <new>.
#include <warn-new-overaligned-3.h>
namespace test1 {
struct Test {
template <typename T>
struct SeparateCacheLines {
T data;
} __attribute__((aligned(256)));
SeparateCacheLines<int> high_contention_data[10];
};
void helper() {
Test t;
new Test; // expected-warning {{type 'test1::Test' requires 256 bytes of alignment and the default allocator only guarantees}}
new Test[10]; // expected-warning {{type 'test1::Test' requires 256 bytes of alignment and the default allocator only guarantees}}
}
}
namespace test2 {
struct helper { int i __attribute__((aligned(256))); };
struct Placement {
Placement() {
new (d) helper();
}
helper *d;
};
}